(A) (a) Draw a labelled diagram showing open and closed stomatal pore. (b) List the main events that occur…
(A) (a) Draw a labelled diagram showing open and closed stomatal pore.
(b) List the main events that occur during the process of photo-synthesis.
(c) Write a balanced chemical equation showing photo-synthesis in plants.
Solution
(A)
(a)
1+1
(b)
• Absorption of light energy by chlorophyll.
• Conversion of light energy to chemical energy and splitting of water
molecule into hydrogen and oxygen.
• Reduction of carbon dioxide to carbohydrates.
(c)
OR
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(B)
(a)
Diagram
Labelling of any 4 parts ½x4
(b) Filtration of blood to remove wastes.
(c) It is a process by which useful substances like glucose, amino acids,
vitamins, salts and most of water are reabsorbed from filtrate, back
into the blood.
SECTION – B
Chemistry